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Home >> Buick >> 2011 >> Lucerne Super >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 4.6L - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Inspection/Maintenance System Check >> Circuit/System Verification
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Verification

Review the I/M System Status indicators. All I/M System Status indicators should report YES.

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